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Open Access Research article

Behavior change in a lifestyle intervention for type 2 diabetes prevention in Dutch primary care: opportunities for intervention content

Paulina WA Vermunt12*, Ivon EJ Milder2, Frits Wielaard1, Caroline A Baan2, Jos DM Schelfhout3, Gert P Westert14 and Hans AM van Oers15

Author Affiliations

1 Scientific Centre for Transformation in Care and Welfare (Tranzo), University of Tilburg, Tilburg, the Netherlands

2 Centre for prevention and health services research, National Institute for Public Health and the Environment, Bilthoven, the Netherlands

3 Association of primary care practices ‘De Ondernemende Huisarts’ (DOH), Eindhoven, the Netherlands

4 Scientific Institute for Quality of Healthcare (IQ Healthcare), Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands

5 Department of public health status and forecasts, National Institute for Public Health and the Environment, Bilthoven, the Netherlands

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BMC Family Practice 2013, 14:78  doi:10.1186/1471-2296-14-78

Published: 7 June 2013

Abstract

Background

Despite the favorable effects of behavior change interventions on diabetes risk, lifestyle modification is a complicated process. In this study we therefore investigated opportunities for refining a lifestyle intervention for type 2 diabetes prevention, based on participant perceptions of behavior change progress.

Methods

A 30 month intervention was performed in Dutch primary care among high-risk individuals (FINDRISC-score ≥ 13) and was compared to usual care. Participant perceptions of behavior change progress for losing weight, dietary modification, and increasing physical activity were assessed after18 months with questionnaires. Based on the response, participants were categorized as ‘planners’, ‘initiators’ or ‘achievers’ and frequencies were evaluated in both study groups. Furthermore, participants reported on barriers for lifestyle change.

Results

In both groups, around 80% of all participants (intervention: N = 370; usual care: N = 322) planned change. Except for reducing fat intake (p = 0.08), the number of initiators was significantly higher in the intervention group than in usual care. The percentage of achievers was high for the dietary and exercise objectives (intervention: 81–95%; usual care: 83–93%), but was lower for losing weight (intervention: 67%; usual care: 62%). Important motivational barriers were ‘I already meet the standards’ and ‘Im satisfied with my current behavior’. Temptation to snack, product taste and lack of time were important volitional barriers.

Conclusions

The results suggest that the intervention supports participants to bridge the gap between motivation and action. Several opportunities for intervention refinement are however revealed, including more stringent criteria for participant inclusion, tools for (self)-monitoring of health, emphasis on the ‘small-step-approach’, and more attention for stimulus control.

Trial registration

Netherlands Trial Register: NTR1082

Keywords:
Type 2 diabetes; Primary care; Behavior change; Lifestyle intervention